Liquid-mixing means



M. DONAUER.

LIQUID MIXING MEANS. APPLICATION FILED JULY 1,1920.

1,430,729 Patented 001:. 3,1922.

INVENTOR They, pomuuzw 4 BY i 4 Z Patented Get, 3, 1922.

unrrsn s'rarss MAX DONAUE'R, or ELYRIA, OHIO, ASSIGNOR 'r'o THE ELYRIAL mini/rennin r'nonucrrs 1,430,729 PATENT COMPANY, or ELYR-IA, onro. A oo aronarrron or" onto.

LIQUID-MIXING MEANS.

Application filed July 1, 1920. Serial No. 393,430.

To all whom it may concern:

Be it known that 1, MAX DONAUER, a citizen of the United States, residin at Elyria, in the county of Lorain and btate of @hio, have invented certain new and useful Improvements in LiquidMixing Means; and I do hereby declare the following to be a full, clear, and exact description of my invention, such as willtenable others skilled in the art to which it apper tains to make and use the same.

My invention relates to improvements for agitating the contents of such vessels as tanks, vats and the like;

One of the objects of my invention is to provide means which will more quickly, thoroughly, effectively and uniformly expose difierent particles of the liquid, or liquid conveyed particles in a tank container, to the other particlesoi' the liquid in the tank, so that it the object of the operation is to cause solution, diiierent por tions of the liquid will be brought into contact with the solid particles sought to be dissolved to a maximum degree in a minimum length of time and also it the object of the operation is to promote homogenity of the liquid contents of the tank, the diiierent portions of the liquid will become intermingled very eiiiciently. i

It is highly desirable to realize the above and other results which may be secured in the use of my invention, by the use of apparatus which is cheap to construct, simple to and convenient to operate. I aim to provide such apparatus, and it is one of the objects of my invention to provide this apparatus, in such form as will give most eflicient mode of operation to achieve the results sought for. These and other objects of my invention will be better understood from a description of an embodiment thereon Referring tothe drawings, in Figure l is a sectional view taken along line 1-1 of Figure 2 looking in the direction of the arrow V.

Figure 2 is a horizontal sectional view of my invention. Referring now to the drawing and to the embodimentof the drawing illustrated therein, at A is shown a tank or vat which is here shown as having a waist portion, comprising sect-ions B and C, which are herein shown as cylindrical in form. The bottom wall of the tank is composed of an invert cone section D, the three sections, B, G and D, being assembled together at junctions E and F in any'suitable manner, such as welding or by bolting the sections together or in any desired way.

Although the tank of my invention may be jacketed so as to maintainflthe walls of the tank in contact with a heating or cooling medium, for the sake of simplicity of disclosure of my invention, I do not so illustrate the embodiment herein. The tank may be supported in various ways, such as by hanging from the beams 2 and 3 to which its top flange is bolted and in which case the tank may depend from the floor of a room, or it may be mounted on supporting means, such as columns, if desired. An exhaust opening for discharging the contents of the tank is shown at G to which is connected a pipe H, in which pipe valve l may be placed adapted to close the passage when desired. The bottom portion D, which in the embodiment illustrated and de scribed, is shown as cone shaped, but which shape might be varied if desired, is perforated at J to admit apropeller shaft K on the end of which inside the tank is mounted a propeller L and on the end outside the tank is mounted a pulley M, or other power transmitting means as may be desired. Such a case, rotates in avertical plane and the space to the rear of the propeller at its periphery is therefore considerably restricted, particularly at the lower portions thereof, due to the close approach of the tapering bottom to the rear edge of the rotating propeller blades when such blades are traversing the lower portion of their circular path.

The operation of the embodiment of my invention illustrated will first be described, assuming that the propeller is so pitched as to be called a left handed propeller and that the propeller is rotated in such a direction as, that viewed from the middle of the tank in front of the propeller, would cause it to rotate counter-clockwise.

Under such a condition, the propeller will hurl liquid peripherally of its blades, some of the liquid proceeding downwardly in the direction ofthe arrow shown in Figure 2 at 5, and these currents will travel to the lowermost portion of the cone bottom and being deflected again in various directions will convey any sediment which would otherwise be deposited in this lowermost portion, up into the higher levels of the tank, which high levels of liquld are in a continuous state of agitation caused by other currents directed by the propeller.

'I find that a propeller operating in a tank as has been described produces an agitation of the tank contents which is most eflicient and satisfactory.

I also find that when the direction of the propeller is reversed that the peripherally hurled fluids traverse the bottom of the tank in very much the same manner as described before, and although the direction of some of the other currents is reversed, the mode of operation previously described is maintained and efiicient agitation is produced.

-Having thus described my invention, I wish it to be understood that the same is not limited to the aforesaid embodiment herein illustrated and described, as my invention maybe embodied in other structures which still come within the spirit and scope of my invention.

I claim: I

1. In a device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located closely in front of and above an adjacent portion of said bottom wall, and the said bottom wall being downwardly dished.

2. In a device of'the class described, a tank, inclined side Walls'and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction withthe said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located closely in front of and above an adj acent portion of said bottom wall, and the said bottom wall being cone-shaped.

3. In a device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located closely in front of and above an adj acent portion of said bottom wall, said bottom wall being downwardly inclined towards its center.

4:. In a. device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located in front of and above an adjacent ter, and said propeller being located relatively near one side of the downwardly in clined wall. 7

5. In a device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located closely in front of and above an adjacent portion of said bottom wall, and said bottom wall being cone shaped the base of the cone joining the side wall bottom edges, and the apex being perforated to permit the egress of the contents of the tank.

6. In a device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft, said propeller being located closely in front of and above an adjacent portion of said bottom wall, said bottom wall being cone-shaped the base of the cone joining the side wall bottom edges, and the apex being perforated to permit the egress of the contents of the tank, and said propeller rotating in a substantially vertical plane substantially within the tank bottom.

7. In a device of the class described, a tank, inclined side walls therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft and adapted to rotate in a substantially vertical plane disposed closely adjacent the point where the said shaft passes through the said bottom wall, and said bottom wall being cone shaped, the base of the conejoining the side wall bottom edges, and the apex being perforated to permit the egress of the contents of the tank.

8. In a device of the class described, a tank, inclined side walls and a bottom wall therefor, a propeller shaft extending substantially horizontally through the bottom wall at a point near its junction with the said side walls, and a rotatable pitched propeller on the said shaft and adapted to rotate in a substantially vertical plane disposed closely adjacent the point where the said shaft passes through the said bottom wall, said bottom wall being cone shaped the base of the cone joining the side wall bottom edges, and the apex being perforated to permit the egress of the contents of the tank, and said propeller rotating in a substantially vertical plane substantially within the tank bottom.

9. In a device of the class described, a

tank, inclined side Walls and a bottom Wall said shaft passes through the said bottom therefor a propeller shaft extending sub- Wall, and said propeller rotating in asub- 1r stantially horizontally through the bottom stantially vertical plane substantially With- Wall at a point near its junction with the in the tank bottom.

said side Walls and a rotatable pitched pro- In Witness whereof, I have hereunto peller on the said shaft and adapted to rosigned my name this 25th day of June, 1920. tate in a substantially vertical plane disposed closely adjacent the point Where the MAX DONAUER. 

